From: "Steven Rostedt (Red Hat)" <[email protected]> Commit 4104d326b670 "ftrace: Remove global function list and call function directly" cleaned up the global_ops filtering and made the code simpler, but it left a variable "hash_enable" that was used to know if the hash functions should be updated or not. It was updated if the global_ops did not override them. As the global_ops are now no different than any other ftrace_ops, the hash always gets updated and there's no reason to use the hash_enable boolean.
The same goes for hash_disable used in ftrace_shutdown(). Signed-off-by: Steven Rostedt <[email protected]> --- kernel/trace/ftrace.c | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) diff --git a/kernel/trace/ftrace.c b/kernel/trace/ftrace.c index 38e5cf7..2c99d1f 100644 --- a/kernel/trace/ftrace.c +++ b/kernel/trace/ftrace.c @@ -2042,7 +2042,6 @@ static void ftrace_startup_enable(int command) static int ftrace_startup(struct ftrace_ops *ops, int command) { - bool hash_enable = true; int ret; if (unlikely(ftrace_disabled)) @@ -2056,8 +2055,8 @@ static int ftrace_startup(struct ftrace_ops *ops, int command) command |= FTRACE_UPDATE_CALLS; ops->flags |= FTRACE_OPS_FL_ENABLED; - if (hash_enable) - ftrace_hash_rec_enable(ops, 1); + + ftrace_hash_rec_enable(ops, 1); ftrace_startup_enable(command); @@ -2066,7 +2065,6 @@ static int ftrace_startup(struct ftrace_ops *ops, int command) static int ftrace_shutdown(struct ftrace_ops *ops, int command) { - bool hash_disable = true; int ret; if (unlikely(ftrace_disabled)) @@ -2084,8 +2082,7 @@ static int ftrace_shutdown(struct ftrace_ops *ops, int command) */ WARN_ON_ONCE(ftrace_start_up < 0); - if (hash_disable) - ftrace_hash_rec_disable(ops, 1); + ftrace_hash_rec_disable(ops, 1); if (!global_start_up) ops->flags &= ~FTRACE_OPS_FL_ENABLED; -- 1.8.5.3 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
